function GuiTableRowProduct() {
};

GuiTableRowProduct.instance = function(prefix) {
  return { customer: document.getElementById(prefix + '_customer_td'),
           checked: document.getElementById(prefix + '_product_checkbox'),
           order: document.getElementById(prefix + '_order_td'),
           name: document.getElementById(prefix + '_name_td'),
           quantity: document.getElementById(prefix + '_quantity_td')
         };
};